Organ-shutter.



J. T. AUSTIN.

ORGAN SHUTTER.

APPLICATION FILED APR.28, 1914.

Patented Dec. 1, 1914.

Vitae-9.963

In venar:

cf. ZA cos-fin FOFW Ire UNITED "sTA rEs PATENT canton.

JOHN '1. AUSTIN;-

HARTFORD, CONNECTICUT, ASSIGNOR T0 AUSTIN ORGAN COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF MAINE.

onennsno'rrnn.

Application filed April 28. 1914.

To all whom it may concern Be it known that 1, JOHN T. AUSTIN, a citizen ofthe United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Organ- Shutters, of which the following is a specification.

This invention relates to organshutters.

()ne of the primary objects of the invention is the provision of an article of this character which is light yet which possesses unusual strength and also the ability to resist warping or distorting effects.

tAnother object of the invention is the provision of a shutter having ellicient means for interceptingthe passage of sound therethrough.

The shutter possesses other features of novelty and advantage which with the foregoing will be stated at length in the following description, wherein I will set forth in detail thatone of the several forms of embodiment of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. The showing in question is provided to enable those skilled in the art to practise the invention. I do not restrict myself thereto; I may deviate therefrom in several particulars within the scope of the invention defined by the (claims following said description.

Referring to said drawings: Figure 1 is a view of several of the shutters, portions only of the two extreme shutters being illustrated and one intermediate shutter being shown in longitudinal section and the other in elevation. Fig. 2 is an edge view partly in section of one of the shutters, the section being on the line 22 ofFig. 1.

Like characters refer to like parts in both views. In Fig. 1 I have shown two shutters in full and portions of two others, and they are denoted in a. general way respectively by 2, 3, a and 5. A detailed description of one of the shutters will apply to the others, as in the illustration they are of similar construction. The shutter involves in its organization a body or frame preferably of wood or equivalent material; there are compositions in'fact which meet my requirements. For instance some of the plastic compositions now employed in; lieu Specification of Letters Patent.

Patented Dec. 1, H314.

Serial No. 534,917.

of wood will answer in this respect. In addition to the frame there are face plates of metal and the frame and face plates are so assembled as to present a chambered or hollow structure which is or should be practically imperforate or closed. The frame shown consists of complemental side bars 6 and 7 and duplicate end pieces or blocks 8 and 9, the side bars being arranged in parallelism with each other, while the same observation applies to the two end pieces or blocks. Said end pieces or blocks are fitted as shown between the ends of the side bars 6 and 7. the several parts being rigidly united in any desirable manner as by nails 10. lVhile the two end pieces or blocks 8 and. 9'can be disposed in any desired manner, they are at an angle to the face plates hereinafter described, and it follows that the side bars 6 and 7 will be so disposed with respect to each other, as to obtain this particular relation. It will be clear that where there are several shutters their angular terminal faces abut or practically I say practically abut because as will hereinafter appear there is interposed between the contiguous terminal faces of the shutters, packing means of asuitable nature to make close or air-tight joints at such places. The face-plates are denoted by 11 and 12, and they are also of duplicate construction, overlying the frame already described to provide a chamber. The face-plates can be secured to the frame in any desirable manner, for instance. by nails 13. interposed between the faceplates and the wooden frame is packing as l-i. This packing may be of any suitable nature. although builders paper, heavy cardboard or something of an equivalent nature serves properly in this particular capacity.

The foregoing is a description of a shutter which is effective in itself, said shutter being quite light, yet possessing an unusual amount of strength; I also find that it will not get out of true or warp under various atmospheric conditions and different methods of operation.

it is desirable if not essential, that there should he means of some character to re sist the passage of sound through the shutter, and while it is conceivable that this re.- sult could be obtained by exhausting the air from the chamber or hollow of the shutter,

I. prefer to obtain the same in a much more effective less expensive manner. I provide a filling in the shutter to arrest or intercept the sound, and this filling may Vary decidedly, although I can secure excellent results by a cellular filling which in itself may take different forms, although that now to be described is well suited to my requirements. Within the chamber of the shutter are flat or plain sheets 15 between which are interposed corrugated sheets 16. These several sheets may be of any suitable material, for instance heavy paper or cardboard, and they can be glued, cemented or otherwise attached together. It will be noted that the filling has a large number of cells arranged in parallel rows, and these cells will present an advantageous barrier to the travel of sound through the shutter from the-inside to the outside thereof.

One of the end blocks. the end block 9 as shown is provided with packing, and this packing as illustrated consists of several cylindrical cords 17 set into semi-cylindrical grooves or channels 18 extending across the outer surface of the said end piece 9, the cords or packing members 17 being held in place by cementing or otherwise, by virtue of. which when the shutters are closed together the passage of sound through the butt joints therebetween is precluded. A F or facility in manufacture the blocks 8 and 9 are of duplicate construction, the grooves 1.9 in the block 8 being inside, however, and

serving no function.

The shutter may be equipped with pivot-s as 20.

vber.

It will be clear that from the foregoing description, my shutter comprises a frame and metal plates fastened to the frame to present a hollow closed structure, the frame being of softer material than the plates, and

material between the plates checks or prevents the transference of sound from one plate to another; that is to say, there is a non-resonant connection between the two plates. I

What I claim is:

1. An organ-shutter comprising a frame, and metal plates fastened to the frame to present a hollow closed structure, the frame being of softer material than the plates An organ-shutter comprising a \i'ood n frame, and metal plates fastened to the frame to present a hollow closed structure.

3. An organ-shutter comprising a wooden frame having two side bars, and end pieces disposed between the side bars and also having metal face plates fastened to the frame to secure a closed, chambered Structure.

4. An organ-shutter having a closed chamber, and a cellular fillingin said charm In testimony whereof I affix my signature in presence of two witnesses.

JOHN T. AUSTIN.

Witnesses:

HEATH SUTHERLAND, CHAS. T. Connrr. 

